Numerical Simulation of Dust Distribution Over the Complex Terrain Region of Georgia
Main Article Content
Abstract
Kinetics of dust propagation in Kakheti region is numerically studied. It is determined that in 100 m layer of atmosphere the process of turbulent diffusion take precedence in the process of dust propagation. From 100 m to 1 km the processes of diffusive and advective transfers are identical, while above 1 km the preference is given to advective transfer. Maximum values of dust concentration are obtained in 100 m surface air layer. Spatial dust distribution region increases and concentration decreases along with height increase. Urban influence zone is determined.
Article Details
References
Berliand M E. Modern Problems of Atmospheric Diffusion and Atmospheric Pollution. Gidrometeoizdat, Leningrad, 1975, (in Russian).
Berliand M E. Forecast and Adjustment Atmospheric Pollution. Gidrometeoizdat, Leningrad, 1985, (in Russian).
Methods of Calculating Pollutant Concentrations in Atmospheric Air as Present in Factory Discharges. OND-86. Gidrometeoizdat, Leningrad, 1987, (in Russian).
Marchuk G. I. Mathematical Modeling in the Environmental Problem. Gidrometeoizdat, Leningrad, 1982, (in Russian).
Penenko V. V., Aloyan A. E. Models and Methods for Environmental Protection Tasks. Nauka, Novosibirsk, 1985, (in Russian).
Aloyan A. E., Penenko V. V., Kozoderov V. V. Mathematical Modeling in Environmental Issues. Modern Problems of Computational Mathematics and Mathematical Modeling, 2, 2005, pp. 279-351, (in Russian).
Aloyan A. E., Arutinian V. O. Modeling of Gaseous Admixtures and Aerosols Evolution in Atmosphetic Disperse Systems. www.sscc.ru/Conf/mmg2008/papers/aloyan.doc, 2008.
Aloyan A. E. Modeling of Dynamics and Kinetics of Gaseous Admixtures and Aerosols in the Atmosphere. Nauka, Moscow, 2008, (in Russian).
Grishin A. M. Mathematical Modeling of Forest Fires and New Methods of Struggle Against Them. Nauka, Novosibirsk,1992, (in Russian).
Aloyan A. E. Modeling of Aerosols Dynamics During Forest Fires. Izvestiya, Atmospheric and Oceanic Physics, 45, 2009, pp. 62-75, (in Russian)
Long J., Cheng S., Li J., Chen D., Zhou Y., et al. A Monitoring and Modeling Study to Investigate Regional Transport and Characteristic of PM2,5 Pollution. Aerosol and Air Quality Research. 13, 2013, pp. 943-956.
Ginoux P., Chin M., Tegrn I., Prospero J. M., Holben B., et al. Sources and Distributions of Dust Aerosols Simulated with the GOCART Model. J. of the Geophysical Research, 106, 2001, pp. 255-273.
Perez C., Hausten K., Janjic Z., Jorba O., Huneeus N., et al. Atmospheric Dust Modeling from Meso to Global Scales with the Online NMMB/BSC-Dust Model - Part 1: Model Description, Annual Simulations and Evaluation. Atmospheric Chemistry and Physics, 11, 2011, pp. 13001-13027. doi:10.5194/acp-11-13001-201.
Shlichkov V. A., Malbakhov V. M., Leghenin A. A. Numerical Modeling of Atmospheric Circulation and Transfer of Contaminating Impurities in Norilsk Valley. Atmospheric and Oceanic Optic, 18, 2005, pp. 490-496, (in Russian).
Surmava A. A., Mishvelad¬¬ze B. A., Davitashvili T. Numerical Modeling of the Pollution Transfer in the Caucasus Atmosphere from Hypothetical Source in Case of the Background Western Wind. Journal of the Georgian Geophysical Society, ISSN: 1512-1127, vol. 13B, 2009, pp. 15-21.
Surmava A. A. Numerical Investigation of the Modeling of Transporta¬tion and Deposition of the Radioactive Pollution in the Caucasian Region in Case of the Hypothetical Accident on the Armenian Nuclear Power Plant. Journal of the Georgian Geophysical Society, ISSN: 1512-1127, vol. 15B, 2012, pp. 32-45.
Kordzadze A., Surmava A., Kukhalashvili V. Numerical Investigation of the Air Possible Pollution in Case of Large Hypothetical Accidents at Some Industrial Territories of the Caucasus. Journal of the Georgian Geophysical Society, ISSN: 1512-1127, vol. 16 B, 2013, pp. 13-23.
Selegei T. S., Shlichkov V. A., Leghenin A. A., Malbakhov V. M. Model of Local Forecast of Formaldehyde Pollution of Atmosphere in Tomsk on the Basis of Statistical and Hydrodynamic Methods. Russian Meteorology and Hydrology, 4, 2012, pp. 35-44, (in Russian).
Kordzadze A. A., Surmava A. A., Demetrashvili D. I., Kukhalashvili V. G. Numerical Investigation of Impact of Caucasus Region Relief on Distribution of Hydrometeorological Fields. Izvestiya, Atmospheric and Oceanic Physics, 43, 2007, pp. 783-791.
Kazakov A. L., Lazriev G. L. On Parametrization of Atmospheric Boundary Layer and Active Soil Layer. Izvestiya, Atmospheric and Oceanic Physics, 15, 1978, pp. 257-265.
Ed. Georgian National Environmental Agency. Short review of Georgia environment pollution. www.nea.gov.ge, 2017, (in Russian).
Ed. Bezuglaia E. U., Berliand V. E., Volberg N. Sh., Zaitsev A. S., Sidorenko G. I., et al. Guidance on Atmospheric Pollution Control (RD 52. 04. 186-89). Goskomgidromet, Russia, 1991, (in Russian).